Both styles emerged post WWII. As its name implies, Atomic Age Style was inspired by the nuclear bomb. Alongside it was the futuristic Space Age style, which was in turn inspired by space exploration age. Their most recognizable translations in interior design being the atomic-shaped bubble branching chandeliers & the Sputnik chandeliers. They are commonly included in Mid-Century Modern & Diner Styles of the same period. They all belong to the retro umbrella of decorating styles.